Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752669AbdCFCf1 (ORCPT ); Sun, 5 Mar 2017 21:35:27 -0500 Received: from LGEAMRELO11.lge.com ([156.147.23.51]:59602 "EHLO lgeamrelo11.lge.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752639AbdCFCfZ (ORCPT ); Sun, 5 Mar 2017 21:35:25 -0500 X-Original-SENDERIP: 156.147.1.125 X-Original-MAILFROM: minchan@kernel.org X-Original-SENDERIP: 165.244.249.23 X-Original-MAILFROM: minchan@kernel.org X-Original-SENDERIP: 10.177.223.161 X-Original-MAILFROM: minchan@kernel.org Date: Mon, 6 Mar 2017 11:16:10 +0900 From: Minchan Kim To: Anshuman Khandual CC: Andrew Morton , , , , Johannes Weiner , Michal Hocko Subject: Re: [RFC 07/11] mm: remove SWAP_AGAIN in ttu Message-ID: <20170306021610.GE8779@bbox> References: <1488436765-32350-1-git-send-email-minchan@kernel.org> <1488436765-32350-8-git-send-email-minchan@kernel.org> MIME-Version: 1.0 In-Reply-To: User-Agent: Mutt/1.5.24 (2015-08-30) X-MIMETrack: Itemize by SMTP Server on LGEKRMHUB05/LGE/LG Group(Release 8.5.3FP6|November 21, 2013) at 2017/03/06 11:16:12, Serialize by Router on LGEKRMHUB05/LGE/LG Group(Release 8.5.3FP6|November 21, 2013) at 2017/03/06 11:16:12, Serialize complete at 2017/03/06 11:16:12 Content-Type: text/plain; charset="us-ascii" Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 360 Lines: 9 On Fri, Mar 03, 2017 at 06:24:06PM +0530, Anshuman Khandual wrote: > On 03/02/2017 12:09 PM, Minchan Kim wrote: > > In 2002, [1] introduced SWAP_AGAIN. > > At that time, ttuo used spin_trylock(&mm->page_table_lock) so it's > > Small nit: Please expand "ttuo" here. TTU in the first place is also > not very clear but we have that in many places. No problem.